Influence of Specific Surface Area on Coal Dust Explosibility Using the 20-L Chamber

Details

• Personal Author:
  Brown CB ; Harris, Marcia L. ; Perera IE ; Rayyan NS ; Sapko, Michael J. ; Zlochower, Isaac A.
• Description:
  The relationship between the explosion inerting effectiveness of rock dusts on coal dusts, as a function of the specific surface area (cm2/g) of each component is examined through the use of 20-L explosion chamber testing. More specifically, a linear relationship is demonstrated for the rock dust to coal dust (or incombustible to combustible) content of such inerted mixtures with the specific surface area of the coal and the inverse of that area of the rock dust. Hence, the inerting effectiveness, defined as above, is more generally linearly dependent on the ratio of the two surface areas. The focus on specific surface areas, particularly of the rock dust, provide supporting data for minimum surface area requirements in addition to the 70% less than 200 mesh requirement specified in 30 CFR 75.2. [Description provided by NIOSH]
• Subjects:
  Coal Dust Explosions Mining Occupational Health Particulate Matter Safety
• Keywords:
  Author Keywords: Dust Explosion Prevention Coal Dust Coal Mines Dust Explosions Dusts Explosion Prevention Explosive Dusts Inerting Coal Dust Particle Size Particulate Dust Specific Surface Area Surface Properties Testing Equipment

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• Series:
  Mining Publications
• ISSN:
  0950-4230
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  103-109
• Volume:
  54
• NIOSHTIC Number:
  nn:20051211
• Citation:
  J Loss Prev Process Ind 2018 Jul; 54:103-109
• Contact Point Address:
  Isaac A. Zlochower, Pittsburgh Mining Research Division, National Institute for Occupational Safety and Health, 626 Cochrans Mill Road, Pittsburgh, PA, 15236
• Email:
  iaz0@cdc.gov
• Federal Fiscal Year:
  2018
• NORA Priority Area:
  Mining
• Peer Reviewed:
  True
• Source Full Name:
  Journal of Loss Prevention in the Process Industries
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7a447256ce1f3f13ffba6f90051420d1c9f251b0c372458eb53ca1165709aa2e9c7e1fe9cfdc74d564bf2886b5b8834cee425f132cb8e8f4576fa44c48503408
• Download URL:
  https://stacks.cdc.gov/view/cdc/227639/cdc_227639_DS1.pdf
• File Type:
  [PDF - 875.38 KB ]